Synonyms: Gyromium velleum var. hirsutum; Gyrophora depressa var. hirsuta; Gyrophora hirsuta; Gyrophora hirsuta melanotricha; Gyrophora hirsuta var. grisea; Gyrophora hirsuta var. vestita; Gyrophora spodochroa f. hirsuta; Gyrophora vellea var. hirsuta; Lecidea hirsuta; Lichen griseus (homotypic); Lichen hirsutus (homotypic); Umbilicaria depressa var. hirsuta; Umbilicaria dillenoides; Umbilicaria grisea var. hirsuta; Umbilicaria hirsuta var. melanotricha; Umbilicaria vellea var. hirsuta; Umbillicaria hirsuta